/* Homepage composition. Shared navigation and controls live in site-shell.css. */
:root { --home-paper: #f3f2ee; --home-ink: #1c2427; --home-muted: #777c7d; --home-red: #bd2633; --home-dark: #11191d; --home-ease: cubic-bezier(.22,1,.36,1); }
*, ::before, ::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body.sme-home { margin: 0px; background: var(--home-paper); color: var(--home-ink); font-family: Arial, "PingFang SC", "Microsoft YaHei", sans-serif; -webkit-font-smoothing: antialiased; line-height: 1.65; }
.sme-home h1, .sme-home h2, .sme-home h3, .sme-home p, .sme-home figure { margin: 0px; }
.sme-home h1, .sme-home h2, .sme-home h3 { text-wrap: balance; font-weight: 500; }
.sme-home a { color: inherit; text-decoration: none; }
.sme-home button { font: inherit; color: inherit; cursor: pointer; }
.sme-home img { display: block; max-width: 100%; height: auto; }
.sme-home ul { list-style: none; margin: 0px; padding: 0px; }
.sme-home [hidden] { display: none !important; }
.sme-home a:focus-visible, .sme-home button:focus-visible, .sme-home summary:focus-visible { outline: rgb(206, 57, 68) solid 2px; outline-offset: 6px; }
.sme-home ::selection { background: rgb(189, 38, 51); color: rgb(255, 255, 255); }
.eyebrow, .section-kicker { font-size: 11px; font-weight: 500; letter-spacing: 0.16em; line-height: 1.6; }
.red-mark { display: inline-block; width: 6px; height: 6px; background: var(--home-red); margin-right: 12px; vertical-align: 2px; }
.muted { color: var(--home-muted); }
.brand-caption { font-size: 10px; letter-spacing: 0.38em; color: rgb(208, 211, 211); line-height: 1; }
.home-hero { position: relative; min-height: 760px; height: 100svh; max-height: 1200px; background: rgb(16, 23, 27); color: rgb(255, 255, 255); overflow: hidden; --hero-shift: 0px; --hero-scale: 1; }
.hero-slides, .hero-slide { position: absolute; inset: 0px; }
.hero-slide { opacity: 0; visibility: hidden; pointer-events: none; transition: opacity 1s var(--home-ease),visibility 1s; }
.hero-slide.is-active { opacity: 1; visibility: visible; pointer-events: auto; z-index: 1; }
.hero-media { position: absolute; inset: 0px 0px 0px 19%; transform: translateY(var(--hero-shift)) scale(var(--hero-scale)); transform-origin: 70% 50%; }
.hero-media picture, .hero-media img { width: 100%; height: 100%; display: block; }
.hero-media img { object-fit: cover; object-position: 55% 50%; transform: scale(1.035); transition: transform 8s linear; }
.hero-slide.is-active .hero-media img { transform: scale(1); }
.hero-slide::after { content: ""; position: absolute; inset: 0px; background: linear-gradient(90deg, rgb(16, 23, 27) 0%, rgba(16, 23, 27, 0.95) 16%, rgba(16, 23, 27, 0.68) 34%, rgba(16, 23, 27, 0.15) 60%, transparent 80%), linear-gradient(0deg, rgba(16, 23, 27, 0.88), transparent 26%, transparent 78%, rgba(16, 23, 27, 0.5)); pointer-events: none; }
.hero-content { position: relative; z-index: 2; padding-top: clamp(205px, 29vh, 350px); padding-bottom: 150px; }
.hero-eyebrow { color: rgb(185, 192, 194); font-size: 10px; letter-spacing: 0.18em; margin-bottom: 30px !important; }
.hero-title { letter-spacing: 0.04em; line-height: 1.5; color: rgb(201, 205, 208); max-width: 670px; font-size: 19px !important; }
.hero-title > span { display: block; white-space: pre-line; font-size: clamp(44px, 4.45vw, 82px); font-weight: 500; letter-spacing: -0.04em; line-height: 1.22; color: rgb(247, 247, 244); margin-top: 16px; }
.hero-title > span:empty { display: none; }
.hero-description { max-width: 365px; color: rgb(174, 183, 187); font-size: 13px; line-height: 1.9; margin-top: 27px !important; }
.hero-button { margin-top: 30px; background: transparent; border: 1px solid rgba(255, 255, 255, 0.396); min-width: 168px; }
.hero-button:hover { background: var(--home-red); border-color: var(--home-red); }
.hero-content > * { transition: opacity .8s var(--home-ease),transform .9s var(--home-ease); }
.hero-slide:not(.is-active) .hero-content > * { opacity: 0; transform: translateY(18px); }
.hero-slide.is-active .hero-title { transition-delay: 0.08s; }
.hero-slide.is-active .hero-description { transition-delay: 0.15s; }
.hero-slide.is-active .hero-button { transition-delay: 0.2s; }
.hero-bottom { position: absolute; bottom: 38px; left: 0px; right: 0px; z-index: 3; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid rgba(255, 255, 255, 0.14); padding-top: 26px; }
.scroll-cue { display: flex; align-items: center; gap: 18px; font-size: 11px; color: rgb(208, 211, 211) !important; }
.scroll-cue small { display: block; font-size: 9px; letter-spacing: 0.14em; color: rgb(164, 175, 179); margin-top: 3px; }
.scroll-line { width: 1px; height: 32px; background: rgba(255, 255, 255, 0.19); position: relative; overflow: hidden; }
.scroll-line::after { content: ""; position: absolute; inset: 0px; background: rgb(255, 255, 255); transform: translateY(-100%); animation: 2.7s ease-in-out 0s infinite normal none running scroll-cue; }
@keyframes scroll-cue { 
  0% { transform: translateY(-100%); }
  65%, 100% { transform: translateY(100%); }
}
.hero-controls { display: flex; align-items: center; gap: 8px; }
.hero-count { font-style: normal; font-variant: tabular-nums; font-size-adjust: none; font-language-override: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-weight: normal; font-stretch: normal; font-size: 12px; line-height: 1.2; font-family: Consolas, monospace; letter-spacing: 0.05em; margin-right: 18px; }
.count-divider, #hero-total { color: rgb(155, 165, 171); }
.hero-progress { width: 110px; height: 1px; background: rgba(255, 255, 255, 0.25); margin-right: 22px; overflow: hidden; }
.hero-progress span { display: block; height: 100%; background: rgb(255, 255, 255); transform: scaleX(0); transform-origin: left center; }
.hero-control { width: 42px; height: 42px; border: 1px solid rgba(255, 255, 255, 0.208); background: transparent; display: grid; place-items: center; transition: background 0.2s, border-color 0.2s; }
.hero-control:hover { background: rgba(255, 255, 255, 0.086); border-color: rgba(255, 255, 255, 0.565); }
.hero-control .arrow-icon { width: 18px; }
.pause-symbol { width: 9px; height: 12px; border-inline: 2px solid; }
.hero-pause.is-paused .pause-symbol { width: 0px; height: 0px; border-width: 6px 0px 6px 9px; border-style: solid none solid solid; border-color: transparent currentcolor; border-image: initial; }
.reveal-ready { opacity: 0; transform: translateY(24px); transition: opacity .9s var(--home-ease),transform 1s var(--home-ease); }
.reveal-ready.is-visible { opacity: 1; transform: none; }
.image-unavailable img { visibility: hidden; }
.product-image.image-unavailable::after, .news-feature-image.image-unavailable::after { content: "SME · 产品与资讯"; position: absolute; inset: 0px; display: grid; place-items: center; color: rgb(137, 145, 149); font-size: 14px; letter-spacing: 0.1em; }
@media (hover: hover) and (min-width: 1024px) {
}
@media (min-width: 1700px) {
.hero-description { font-size: 15px; max-width: 410px; }
.hero-title { font-size: 22px !important; }
.hero-content { padding-top: 30vh; }
}
@media (max-width: 1023px) {
html { scroll-padding-top: 80px; }
.brand-caption { font-size: 9px; }
.home-hero { min-height: 790px; max-height: 1100px; }
.hero-content { padding-top: 210px; }
.hero-media { left: 10%; }
.hero-title > span { font-size: 52px; }
}
@media (max-width: 600px) {
.brand-caption { display: none; }
.home-hero { height: 100svh; min-height: 760px; max-height: 960px; }
.hero-content { padding-top: 124px; padding-bottom: 0px; }
.hero-eyebrow { font-size: 8px; letter-spacing: 0.1em; margin-bottom: 20px !important; }
.red-mark { width: 5px; height: 5px; margin-right: 6px; vertical-align: 1px; }
.hero-title { max-width: 100%; font-size: 15px !important; }
.hero-title > span { font-size: clamp(34px, 9.2vw, 46px); letter-spacing: -0.035em; margin-top: 12px; line-height: 1.25; }
.hero-description { font-size: 12px; max-width: 300px; color: rgb(192, 198, 200); margin-top: 17px !important; }
.hero-button { margin-top: 19px; min-height: 44px; padding: 10px 16px; font-size: 12px; min-width: 146px; }
.hero-media { inset: 28% -24% 0px; }
.hero-media img { object-position: 54% 54%; }
.hero-slide::after { background: linear-gradient(rgb(16, 23, 27) 0%, rgba(16, 23, 27, 0.96) 18%, rgba(16, 23, 27, 0.85) 32%, rgba(16, 23, 27, 0.208) 52%, transparent 67%, rgba(16, 23, 27, 0.85) 100%); }
.hero-bottom { bottom: 24px; padding-top: 18px; gap: 16px; align-items: center; }
.scroll-cue { font-size: 10px; gap: 9px; }
.scroll-cue small { font-size: 7px; letter-spacing: 0.07em; }
.scroll-line { height: 27px; }
.hero-controls { gap: 5px; }
.hero-control { width: 32px; height: 36px; }
.hero-count { font-size: 10px; margin-right: 5px; }
.hero-progress { display: none; }
.hero-control .arrow-icon { width: 16px; }
}
@media (prefers-reduced-motion: reduce) {
html { scroll-behavior: auto; }
.sme-home *, .sme-home ::before, .sme-home ::after { animation: auto ease 0s 1 normal none running none !important; transition: none !important; }
.hero-media, .hero-media img, .reveal-ready, .hero-content > * { transform: none !important; }
.reveal-ready { opacity: 1 !important; }
}
@media print {
.hero-controls, .scroll-cue { display: none !important; }
.home-hero { height: 650px; min-height: 0px; }
.reveal-ready { opacity: 1; transform: none; }
.engineering-visual { position: static !important; }
}
.hero-media { mask-image: linear-gradient(90deg, transparent, rgb(0, 0, 0) 22%); }
@media (max-width: 600px) {
.hero-media { inset: 35% -20% 3%; mask-image: linear-gradient(transparent, rgb(0, 0, 0) 22%, rgb(0, 0, 0) 76%, transparent); }
.hero-media img { object-fit: contain; }
}
@keyframes hero-arrive { 
  0% { opacity: 0; transform: translateY(18px); }
  100% { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: no-preference) {
.hero-slide.is-active .hero-eyebrow { animation: hero-arrive .9s var(--home-ease) .05s both; }
.hero-slide.is-active .hero-title { animation: hero-arrive 1s var(--home-ease) .14s both; }
.hero-slide.is-active .hero-description { animation: hero-arrive 1s var(--home-ease) .25s both; }
.hero-slide.is-active .hero-button { animation: hero-arrive 1s var(--home-ease) .34s both; }
}
@media (max-width: 600px) {
.hero-media { inset: 40% -20% 10%; }
.hero-media img { object-fit: cover; object-position: 54% 54%; }
}